Exception being thrown when trying to create/modify/delete Freestyle Project

[Stephen B]

Greetings,

I’m running Jenkins 2.7.3 LTS. I’m trying to create a freestyle project however, when I go to save, copy, modify, or delete the freestyle project I get an exception thrown and can’t seem to track down what is causing the issue. The freestyle project only runs a shell script. 

Here are the plugins and their respective versions that I have installed:

• Authentication Tokens API Plugin: 1.3
• Autofavorite for Blue Ocean: 1.0.0
• Blue Ocean: 1.0.1
• Blue Ocean Pipeline Editor: 0.2.0
• BlueOcean Display URL plugin: 2.0
• bouncycastle API Plugin: 2.16.1
• Branch API Plugin: 2.0.10
• Common API for Blue Ocean: 1.1.2
• Config API for Blue Ocean: 1.1.2
• Config File Provider Plugin: 2.15.7
• Copy To Slave Plugin: 1.4.4
• Credentials Binding Plugin: 1.12
• Dashboard for Blue Ocean: 1.1.2
• Display URL API: 2.0
• Docker Commons Plugin: 1.7
• Docker Pipeline: 1.12
• Durable Task Plugin: 1.14
• Favorite: 2.3.0
• Folders Plugin: 6.0.4
• Git client plugin: 2.4.6
• Git Pipeline for Blue Ocean: 1.1.2
• Git plugin: 3.3.0
• GIT server Plugin: 1.7
• GitHub API Plugin: 1.85.1
• GitHub Authentication plugin: 0.26
• GitHub Branch Source Plugin: 2.0.6
• GitHub Organization Folder Plugin: 1.6
• GitHub Pipeline for Blue Ocean: 1.1.2
• GitHub plugin: 1.27.0
• GitHub Pull Request Builder: 1.35.0
• Groovy: 2.0
• I18n for Blue Ocean: 1.1.2
• Icon Shim Plugin: 2.0.3
• Jackson 2 API Plugin: 2.7.3
• JavaScript GUI Lib: ACE Editor bundle plugin: 1.1
• JavaScript GUI Lib: jQuery bundles (jQuery and jQuery UI) plugin: 1.2.1
• Job DSL: 1.58
• JUnit Plugin: 1.20
• JWT for Blue Ocean: 1.1.2
• Mailer Plugin: 1.20
• Matrix Project Plugin: 1.11
• mesos: 0.13.1
• Metrics Plugin: 3.1.2.10
• Personalization for Blue Ocean: 1.1.2
• Pipeline Graph Analysis Plugin: 1.4
• Pipeline implementation for Blue Ocean: 1.1.2
• Pipeline SCM API for Blue Ocean: 1.1.2
• Pipeline: API: 2.17
• Pipeline: Basic Steps: 2.5
• Pipeline: Declarative Agent API: 1.1.1
• Pipeline: Declarative Extension Points API: 1.1.6
• Pipeline: GitHub Groovy Libraries: 1.0
• Pipeline: Groovy: 2.36
• Pipeline: Input Step: 2.1
• Pipeline: Job: 2.10
• Pipeline: Model API: 1.1.6
• Pipeline: Model Definition: 1.1.6
• Pipeline: Multibranch: 2.15
• Pipeline: Nodes and Processes: 2.12
• Pipeline: SCM Step: 2.5
• Pipeline: Shared Groovy Libraries: 2.8
• Pipeline: Stage Step: 2.2
• Pipeline: Stage Tags Metadata: 1.1.6
• Pipeline: Step API: 2.11
• Pipeline: Supporting APIs: 2.14
• Plain Credentials Plugin: 1.4
• Pub-Sub “light” Bus: 1.8
• rbenv plugin: 0.0.17
• REST API for Blue Ocean: 1.1.2
• REST Implementation for Blue Ocean: 1.1.2
• ruby-runtime: 0.12
• SCM API Plugin: 2.1.1
• Script Security Plugin: 1.29
• SSH Agent Plugin: 1.15
• SSH Credentials Plugin: 1.13
• Structs Plugin: 1.8
• Timestamper: 1.8.8
• Token Macro Plugin: 2.1
• Variant Plugin: 1.1
• Web for Blue Ocean: 1.1.2

I have attached the stacktrace.